A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of high-coercivity strontium ferrite magnetic material
The invention discloses a preparation method of a high-coercivity strontium ferrite magnetic material, which comprises the following steps of: S1, weighing Fe2O3 powder and SrCO3 powder, and uniformlymixing to obtain a premix; S2, uniformly mixing the premix with a modified kaolin additive, and then adding water and carrying out ball milling to obtain primary slurry; S3, drying the primary slurry, presintering the primary slurry at 1300-1320 DEG C, cooling, and crushing to obtain a primary presintered material; S4, adding water into the primary presintered material, and carrying out ball milling to obtain secondary slurry; S5, carrying out wet-pressing magnetic field molding on the secondary slurry to obtain a green body; and S6, sintering the green body at 1240-1260 DEG C, and cooling toobtain the material. The strontium ferrite magnetic material prepared by the invention has high coercive force and high residual magnetism, and is a permanent magnet material with excellent performance.
本发明公开了一种高矫顽力锶铁氧体磁性材料的制备方法，包括以下步骤：S1、称取Fe2O3粉末、SrCO3粉末，混合均匀，得到预混料；S2、将预混料与改性高岭土添加剂混合均匀，然后加水球磨，得到一次浆料；S3、将一次浆料干燥后，在1300‑1320℃下预烧，冷却后破碎，得到一次预烧料；S4、将一次预烧料加水球磨，得到二次浆料；S5、将二次浆料进行湿压磁场成型，得到坯体；S6、将坯体在1240‑1260℃烧结，冷却后即得。本发明制备的锶铁氧体磁性材料兼具高矫顽力和高剩磁性能，是一种性能优越的永磁材料。
Preparation method of high-coercivity strontium ferrite magnetic material
The invention discloses a preparation method of a high-coercivity strontium ferrite magnetic material, which comprises the following steps of: S1, weighing Fe2O3 powder and SrCO3 powder, and uniformlymixing to obtain a premix; S2, uniformly mixing the premix with a modified kaolin additive, and then adding water and carrying out ball milling to obtain primary slurry; S3, drying the primary slurry, presintering the primary slurry at 1300-1320 DEG C, cooling, and crushing to obtain a primary presintered material; S4, adding water into the primary presintered material, and carrying out ball milling to obtain secondary slurry; S5, carrying out wet-pressing magnetic field molding on the secondary slurry to obtain a green body; and S6, sintering the green body at 1240-1260 DEG C, and cooling toobtain the material. The strontium ferrite magnetic material prepared by the invention has high coercive force and high residual magnetism, and is a permanent magnet material with excellent performance.
本发明公开了一种高矫顽力锶铁氧体磁性材料的制备方法，包括以下步骤：S1、称取Fe2O3粉末、SrCO3粉末，混合均匀，得到预混料；S2、将预混料与改性高岭土添加剂混合均匀，然后加水球磨，得到一次浆料；S3、将一次浆料干燥后，在1300‑1320℃下预烧，冷却后破碎，得到一次预烧料；S4、将一次预烧料加水球磨，得到二次浆料；S5、将二次浆料进行湿压磁场成型，得到坯体；S6、将坯体在1240‑1260℃烧结，冷却后即得。本发明制备的锶铁氧体磁性材料兼具高矫顽力和高剩磁性能，是一种性能优越的永磁材料。
Preparation method of high-coercivity strontium ferrite magnetic material
一种高矫顽力锶铁氧体磁性材料的制备方法
QU DELIN (author) / WANG JIURU (author) / LI CONGJUN (author)
2021-03-16
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of high-coercivity strontium-barium ferrite magnetic material
| European Patent Office | 2015
Preparation method for hexagonal strontium ferrite with high coercivity
| European Patent Office | 2015
High-performance strontium permanent magnetic ferrite preparation method
| European Patent Office | 2016
High-coercivity low-loss composite hexagonal ferrite material and preparation method thereof
| European Patent Office | 2022